In addition, a tendency for a negative association with HLA-A*03 was observed in the German BD patients in comparison to the healthy control group (11 (16.9%) patients versus 451 (30.1%) healthy German controls, P = 0.022, Pc-value not significant, OR = 0.47, 95% CI 0.25 to 0.91). Here, HLA-A is linked to Behcet disease.